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Disclosery

RBBN RIBBON COMMUNICATIONS INC

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COMMON STOCK (common), issuer CIK 1708055

143 managers (145 13F filers) reported a position in RBBN shares at 2025-03-31, 127,418,245 shares in all. 27 filers opened a position and 16 filers sold out during the quarter.

Managers
143
13F filers
145
New
27
Added
44
Reduced
48
Sold out
16
Shares held by filers
127,418,245

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2025

Filers in the available 13F reports with a share position at 2025-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO52,038,874$204M0.02%+1,20113F-HRTimelineGroup
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC18,311,527$67.5M0.06%-152,41413F-HRTimelineGroup
PARADIGM CAPITAL MANAGEMENT INC/NY9,511,200$37.3M2.07%-627,42113F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.7,788,905$30.5M<0.01%-1,55613F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC7,457,467$29.2M<0.01%+55,39413F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP6,373,335$25M0.01%+58,66613F-HRTimelineGroup
ROYCE & ASSOCIATES LP3,092,068$12.1M0.13%+289,21013F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC2,133,854$8.37M<0.01%+37,85413F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP2,002,617$7.85M<0.01%+15,16113F-HRTimelineGroup
FIRST WILSHIRE SECURITIES MANAGEMENT INC1,337,214$5.24M1.5%+2,74113F-HRTimeline
FRANKLIN RESOURCES INCin group Franklin Resources1,220,680$4.79M<0.01%-79,66313F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…1,189,250$4.66M0.02%+513,98513F-HRTimeline
HERALD INVESTMENT MANAGEMENT Ltd912,869$3.58M0.67%-210,80913F-HRTimeline
First Eagle Investment Management, LLCin group First Eagle Investment Manage…880,755$3.45M0.01%+61,38613F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP806,938$3.16M<0.01%-21,22513F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co747,781$2.93M<0.01%-12,98613F-HR/ATimelineGroup
VICTORY CAPITAL MANAGEMENT INC605,306$2.37M<0.01%+49,46713F-HRTimeline
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …556,324$2.18M<0.01%-33,43213F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding488,860$1.92M-490,764Timeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.416,687$1.63M<0.01%-52,81213F-HRTimelineGroup
JACOBS LEVY EQUITY MANAGEMENT, INC415,268$1.63M0.01%-11,66413F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY392,870$1.54M<0.01%-50,53913F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC357,340$1.4M<0.01%-59,29113F-HR/ATimelineGroup
WHITE PINE CAPITAL LLC355,522$1.39M0.48%+2,77513F-HRTimeline
Nuveen, LLCin group TIAA330,794$1.3M<0.01%13F-HRTimelineGroup
Hillsdale Investment Management Inc.326,627$1.28M0.07%new13F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/321,060$1.26M<0.01%+205,40613F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp319,543$1.25M<0.01%-8,00113F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC295,428$1.16M<0.01%new13F-HRTimelineGroup
Silverberg Bernstein Capital Management…293,583$1.15M1.07%-22,52713F-HRTimeline
COMMONWEALTH EQUITY SERVICES, LLC289,276$1.13M<0.01%new13F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC245,099$961K<0.01%+233,64613F-HRTimelineGroup
Pacific Ridge Capital Partners, LLC235,329$922K0.24%-1,99613F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC205,287$805K<0.01%new13F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD199,284$781K<0.01%new13F-HRTimeline
Inspire Investing, LLCin group Inspire Investing, LLC192,780$756K0.09%-10,07813F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…188,436$739K<0.01%+30,32813F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.186,705$732K<0.01%-23,10813F-HRTimelineGroup
Swiss National Bank185,474$727K<0.01%013F-HRTimeline
BRIDGEWAY CAPITAL MANAGEMENT, LLC178,000$698K0.02%new13F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC167,754$658K<0.01%+51,79213F-HR/ATimelineGroup
XTX Topco Ltdin group XTX Topco Ltd157,828$619K0.03%new13F-HRTimelineGroup
RHUMBLINE ADVISERS153,183$600K<0.01%-2,51113F-HR/ATimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC152,716$599K<0.01%+20,78813F-HR/ATimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC146,176$573K<0.01%+46,90313F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC144,812$568K<0.01%+130,71213F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC136,921$537K<0.01%+30013F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC134,742$528K<0.01%-45,80913F-HR/ATimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding123,748$485K+56,805Timeline
BANTAMAC CAPITAL, LLC121,322$476K0.23%new13F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc102,056$400K<0.01%013F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC101,211$397K<0.01%+82,36113F-HR/ATimelineGroup
ALLIANCEBERNSTEIN L.P.98,887$388K<0.01%-7013F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO95,970$376K<0.01%+15,88013F-HR/ATimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…89,506$351K<0.01%013F-HRTimeline
Penn Capital Management Company, LLC89,299$350K0.03%+75,92813F-HRTimeline
CITIGROUP INCin group CITIGROUP INC82,460$323K<0.01%-7,83913F-HRTimelineGroup
Assenagon Asset Management S.A.78,330$307K<0.01%-42,62413F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\77,070$302K<0.01%-8,18913F-HRTimelineGroup
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC72,268$283K<0.01%+19,68013F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC71,538$280K<0.01%+15,30213F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/67,334$264K<0.01%+4,73013F-HRTimeline
SG Americas Securities, LLC62,221$244K<0.01%+22,30613F-HRTimeline
BAILARD, INC.61,445$241K0.01%-13,95513F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC61,272$240K0.01%-70,22613F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN60,518$237K<0.01%+1,11713F-HRTimelineGroup
Polymer Capital Management (US) LLC59,567$234K0.07%+46,26813F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC58,560$230K<0.01%-8,26013F-HRTimeline
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…54,930$215K<0.01%+2,34613F-HRTimelineGroup
TEACHER RETIREMENT SYSTEM OF TEXAS53,009$208K<0.01%new13F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF O…50,945$200K<0.01%-7,69113F-HRTimeline
Worth Venture Partners, LLC50,564$198K0.38%+5,00013F-HRTimeline
Corebridge Financial, Inc.in group Corebridge Financial, Inc.44,847$176K<0.01%-66513F-HRTimelineGroup
GSA CAPITAL PARTNERS LLP43,682$171K0.02%new13F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS42,304$166K<0.01%+29,92113F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…38,438$151K<0.01%-17,56713F-HRTimelineGroup
Integrated Quantitative Investments LLC38,010$149K0.07%new13F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…37,543$147K<0.01%013F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson35,625$144K<0.01%013F-HRTimelineGroup
AXA S.A.in group AXA S.A.36,762$144K<0.01%new13F-HRTimelineGroup
Focus Partners Wealthin group Focus Partners Wealth35,580$139K<0.01%+44013F-HR/ATimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …34,406$135K<0.01%-22813F-HRTimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC34,106$133K<0.01%-3,53313F-HRTimelineGroup
PRELUDE CAPITAL MANAGEMENT, LLC33,718$132K0.01%-20013F-HRTimeline
Manatuck Hill Partners, LLC32,573$128K0.06%new13F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC32,113$126K<0.01%-1,97713F-HRTimelineGroup
Dynamic Technology Lab Private Ltd31,554$124K0.02%new13F-HRTimeline
Vestmark Advisory Solutions, Inc.30,138$118K<0.01%+16,33513F-HRTimeline
First Bank & Trust29,262$115K0.02%new13F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM27,640$108K<0.01%-18313F-HRTimeline
HighTower Advisors, LLC25,091$98.4K<0.01%-17013F-HRTimeline
Essex Financial Services, Inc.in group Essex Financial Services, Inc.24,055$94.3K0.01%-24913F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND22,549$88.4K<0.01%013F-HR/ATimeline
Police & Firemen's Retirement System of…21,239$83.3K<0.01%013F-HRTimeline
VISTA INVESTMENT PARTNERS LLC20,400$80K0.02%013F-HRTimeline
CIBC WORLD MARKETS CORP20,313$79.6K<0.01%new13F-HRTimeline
ProShare Advisors LLC19,817$77.7K<0.01%-5,96513F-HRTimeline
IRONWOOD INVESTMENT MANAGEMENT LLC19,218$75.3K0.04%+5413F-HRTimeline
STRS OHIO17,600$69K<0.01%013F-HRTimeline
KLP KAPITALFORVALTNING AS15,500$60.8K<0.01%013F-HRTimeline
NewEdge Wealth, LLC15,130$59.3K<0.01%+1,32713F-HRTimeline
Creative Planningin group Creative Planning14,939$58.6K<0.01%+14,90013F-HRTimelineGroup
Allianz Asset Management GmbHin group Allianz SE14,500$56.8K<0.01%new13F-HRTimelineGroup
Heron Bay Capital Management12,764$50K0.01%new13F-HRTimeline
GRIMES & Co WEALTH MANAGEMENT, LLC10,030$39.3K<0.01%013F-HRTimeline
Fortis Advisors, LLC10,000$39.2K0.03%013F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…9,296$36.4K<0.01%013F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…8,663$34K<0.01%013F-HRTimelineGroup
FMR LLCin group FMR LLC7,338$28.8K<0.01%+3,56713F-HRTimelineGroup
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…6,477$25.4K<0.01%-6,41013F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA5,877$23K<0.01%-5,65513F-HR/ATimelineGroup
COMERICA BANK4,120$16.1K<0.01%-18713F-HRTimeline
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co3,680$14K<0.01%013F-HRTimelineGroup
AMALGAMATED BANK3,119$12K<0.01%013F-HRTimeline
CWM, LLCin group CWM, LLC2,690$11K<0.01%+2,35713F-HRTimelineGroup
US BANCORP \DE\in group US BANCORP \DE\2,583$10.1K<0.01%-1,13013F-HRTimelineGroup
Uniplan Investment Counsel, Inc.2,498$9.79K<0.01%new13F-HRTimeline
Allworth Financial LP2,701$9.67K<0.01%013F-HRTimeline
Medallion Wealth Advisors, LLC1,920$7.37K<0.01%013F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,812$7.1K<0.01%-1,24813F-HRTimelineGroup
Sterling Capital Management LLC1,580$6.19K<0.01%-1,35113F-HRTimeline
Community Bank, N.A.1,400$5.49K<0.01%013F-HRTimeline
Aster Capital Management (DIFC) Ltd1,136$5.36K<0.01%new13F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…1,036$4.06K<0.01%-513F-HRTimelineGroup
SIMPLEX TRADING, LLC1,193$4K<0.01%new13F-HRTimeline
QUADRANT CAPITAL GROUP LLC930$3.65K<0.01%+13413F-HRTimeline
NISA INVESTMENT ADVISORS, LLC417$1.64K<0.01%+25113F-HRTimeline
ROTHSCHILD INVESTMENT LLC275$1.08K<0.01%013F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.266$1.04K<0.01%+1313F-HRTimelineGroup
Arax Advisory Partners237$930<0.01%-48113F-HRTimeline
Amundiin group Amundi228$803<0.01%new13F-HRTimelineGroup
MARYLAND CAPITAL ADVISORS INC.200$784<0.01%new13F-HRTimeline
COLDSTREAM CAPITAL MANAGEMENT INC172$675<0.01%new13F-HRTimeline
Parkside Financial Bank & Trust145$569<0.01%new13F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…128$502<0.01%+6613F-HRTimelineGroup
Larson Financial Group LLC93$365<0.01%new13F-HRTimeline
CoreCap Advisors, LLC80$314<0.01%013F-HRTimeline
Lindbrook Capital, LLC70$274<0.01%013F-HRTimeline
True Wealth Design, LLC33$130<0.01%new13F-HRTimeline
TFC Financial Management, Inc.12$48<0.01%013F-HRTimeline
IFP Advisors, Inc10$39<0.01%+613F-HRTimeline
Arlington Trust Co LLCin group Arlington Trust Co LLC6$24<0.01%013F-HRTimelineGroup
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$0013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.